For the Inventor, By the Inventor

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Houston, TX, United States of America

Stone & Webster Process Technology, Inc.

USPTO Granted Patents = 26

% Expired Patents = 19.2

CIPO Patents = 1

EPO Patents = 6

Trademarks = 5

Forward Citations = 169

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41 inventors (with patents filed for the assignee):

Eusebius Anku Gbordzoe (4 out of 15 patents)

Chris Robert Santner (4 out of 8 patents)

Warren S Letzsch (4 out of 5 patents)

4. Sabah A Kurukchi (3 out of 18 patents)

5. Joseph M Gondolfe (3 out of 13 patents)

6. Harvey McQuiston (3 out of 5 patents)

7. Kelly Benham (3 out of 4 patents)

8. David J Brown (3 out of 4 patents)

9. Ed Yuan (2 out of 2 patents)

10. Gary Jackson (2 out of 2 patents)

11. John Brewer (2 out of 3 patents)

12. Martyn D Roberts (2 out of 2 patents)

13. Richard Barchas (2 out of 3 patents)

14. Douglas Hubbell (1 out of 3 patents)

15. Robert J Gartside (1 out of 72 patents)

26 patents: Sort by Forward Citations

1. 8496786 - Heavy feed mixer (2013-07-30),

2. 8383051 - Separating and stripping apparatus for external FCC risers (2013-02-26),

3. 8349753 - Bathtub-type spent catalyst distributor for effective counter-current regeneration in fluid catalytic cracking units (2013-01-08),

4. 8309776 - Method for contaminants removal in the olefin production process (2012-11-13),

5. 7951739 - Bathtub-type spent catalyst distributor for effective counter-current regeneration in fluid catalytic cracking units (2011-05-31),

6. 7793859 - Fluidized catalytic cracking feed nozzle (2010-09-14),

7. 7772449 - Removal of acid gases and sulfur compounds from hydrocarbon gas streams in a caustic tower (2010-08-10),

8. 7745365 - Bathtub-type spent catalyst distributor for effective counter-current regeneration in fluid catalytic cracking units (2010-06-29),

9. 7744067 - Three phase vapor distributor (2010-06-29),

10. 7591939 - Integrated desulfurization and FCC process (2009-09-22),

11. 7482502 - Process for cracking hydrocarbons using improved furnace reactor tubes (2009-01-27),

12. 7479218 - Deep catalytic cracking process (2009-01-20),

13. 7429363 - Riser termination device (2008-09-30),

14. 7402290 - Condensation reduction in fluid mixing (2008-07-22),

15. 7273543 - Process and apparatus for controlling catalyst temperature in a catalyst stripper (2007-09-25),

Stone & Webster Process Technology, Inc. is a global engineering company providing advanced process technologies, engineering, procurement, and construction services to the energy and chemical industries. With a rich history dating back over 130 years, the company specializes in delivering innovative and sustainable solutions for complex industrial projects. Stone & Webster Process Technology, Inc. is committed to excellence in technical expertise, safety, and client satisfaction.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

Stone & Webster Process Technology, Inc.

26 Patents

#209 in Houston, TX

#739 in Texas

#12,837 in US

#24,735 in the World

Houston, TX, United States of America

Stone & Webster Process Technology, Inc.

Forward Citations = 169

41 inventors:

Eusebius Anku Gbordzoe (4 out of 15 patents)

Chris Robert Santner (4 out of 8 patents)

Warren S Letzsch (4 out of 5 patents)

4. Sabah A Kurukchi (3 out of 18 patents)

5. Joseph M Gondolfe (3 out of 13 patents)

Please report any incorrect information to [email protected]

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